CN110606489A

CN110606489A - Purification recovery type silicon carbide synthesis resistance furnace

Info

Publication number: CN110606489A
Application number: CN201910999635.XA
Authority: CN
Inventors: 张凤英
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-10-21
Filing date: 2019-10-21
Publication date: 2019-12-24

Abstract

The invention relates to a resistance furnace, in particular to a purification recovery type silicon carbide synthesis resistance furnace. The invention aims to provide a purification and recovery type silicon carbide synthesis resistance furnace. A purification recovery type silicon carbide synthesis resistance furnace comprises an automatic feeding and homogenizing device, a resistance furnace, a furnace door control device, a thermal insulation layer removing device, a pollution purification device and a synthesis tank; an automatic feeding and homogenizing device is arranged on the right side of the top end of the underframe; the left side of the top end of the underframe is connected with the resistance furnace. Aiming at solving the problems that the existing resistance furnace needs to be manually filled with synthetic raw materials when synthesizing silicon carbide, the time consumption is long, and occupational diseases such as pneumoconiosis and the like can be caused by the contact of the production time of workers and silicon dioxide; the raw materials cannot be fully utilized. The invention achieves the effects of automatic charging, dust and lung prevention, reduction of contact time between workers and silicon dioxide, purification and recovery of polluted gas, acquisition of byproducts, removal of a heat insulation layer and prevention of hearth explosion.

Description

Purification recovery type silicon carbide synthesis resistance furnace

Technical Field

The invention relates to a resistance furnace, in particular to a purification recovery type silicon carbide synthesis resistance furnace.

Background

Carborundum, also known as carborundum, is prepared by smelting quartz sand, petroleum coke (or coal coke), wood chips (salt is needed when producing green carborundum) and other raw materials at high temperature through a resistance furnace, and among modern C, N, B and other non-oxide high-technology refractory raw materials, carborundum is the most widely and economically applied one, and can be named as corundum or refractory sand.

Chinese patent CN208577440U is directed at the direct contact between the brickwork of firebrick in the furnace and the materials in the furnace, under the action of long-time high temperature, the aging speed of the firebrick layer is very fast, basically, the firebrick brickwork needs to be completely replaced every year, which not only wastes a large amount of manpower and material resources and reduces the working efficiency, but also the secondary treatment of the waste firebrick not only wastes resources and can cause environmental pollution to a certain extent, discloses a silicon carbide synthetic resistance furnace, which overcomes the problem that the firebrick brickwork needs to be completely replaced every year by arranging a graphite coating and a heat insulation layer, which not only wastes a large amount of manpower and material resources and reduces the working efficiency, but also the secondary treatment of the waste firebrick not only wastes resources but also can cause environmental pollution to a certain extent, but also can not treat the carbon monoxide generated in the silicon carbide production process due to lack of, causing environmental pollution.

Chinese patent CN203159235U is difficult to clean and operate the furnace, low efficiency, and it can also cause the problem of damage to equipment, it discloses a silicon carbide synthetic resistance furnace, it is through providing a mode that need not to dismantle the resistant firebrick in the furnace hall when cleaning the furnace hall, has overcome furnace cleaning operation difficulty, low efficiency, still can cause the problem of damage to equipment, nevertheless because lack automatic charging device, thereby can lead to the workman to contact with silica for a long time at the in-process of filling the synthetic raw materials, the problem of easy pneumoconiosis.

In summary, there is a need to develop a silicon carbide synthesis resistance furnace which can reduce the probability of pneumoconiosis of workers during use and can purify and recover toxic waste gas carbon monoxide, so as to overcome the defects that the workers cannot be protected to prevent and treat pneumoconiosis and cannot purify waste gas carbon monoxide in the prior art.

Disclosure of Invention

The invention aims to overcome the defects that the existing resistance furnace needs to be manually filled with synthetic raw materials when synthesizing silicon carbide, the time consumption is long, and occupational diseases such as pneumoconiosis and the like can be caused by the contact of the production time of workers and silicon dioxide; because the formed silicon carbide can obstruct heat, the outside temperature is reduced, the reaction is forced to be terminated, the outer layer raw material cannot be fully utilized, and the yield is low; the toxic gas carbon monoxide generated in the synthesis process cannot be recycled, so that the environment pollution is caused, and the health of workers is influenced; the mixed raw materials are splashed into the hearth from the container, flow onto the inner wall along with the gas of the mixed raw materials, and react on the inner wall of the hearth under the action of high temperature to form a heat insulation substance, so that the inner wall of the hearth is heated unevenly, the heat balance in the hearth is damaged, and finally, the inner walls are pressed unevenly, and the hearth explosion is caused.

The invention is achieved by the following specific technical means:

a purification recovery type silicon carbide synthesis resistance furnace comprises a bottom frame, an automatic feeding and homogenizing device, a resistance furnace, a control screen, a furnace door control device, a thermal insulation layer clearing device, a pollution purification device, an ash-proof cover and a synthesis tank; an automatic feeding and homogenizing device is arranged on the right side of the top end of the underframe; the left side of the top end of the underframe is connected with a resistance furnace, and the right side of the inner bottom of the resistance furnace is connected with an automatic feeding and homogenizing device; the left side of the top end of the automatic feeding and homogenizing device is connected with the synthesis tank; the left side of the top end of the resistor furnace is connected with a control screen; the right side of the top end of the resistance furnace is connected with a furnace door control device; the left side of the top in the resistance furnace is welded with a thermal insulation layer removing device; a pollution purification device is arranged at the bottom of the resistance furnace; the left side of the bottom in the resistance furnace is connected with the ash-proof cover through bolts.

Furthermore, the automatic feeding and homogenizing device comprises a motor, a first driving wheel, a second driving wheel, a first bevel gear, a second bevel gear, a first electric push rod, a third bevel gear, a fourth bevel gear, a flywheel, a first flat gear, a chute, a tank bearing sliding plate, a third driving wheel, a fourth driving wheel, a screw rod, a transfer block, a second electric push rod, a raw material container bottom plate, a third electric push rod, a fifth bevel gear, a sixth bevel gear and a gradual-movement homogenizing device; the right side of the motor is in transmission connection with the first transmission wheel; the bottom of the outer surface of the first driving wheel is in transmission connection with a second driving wheel through a driving belt; the left side of the second transmission wheel is in transmission connection with the first bevel gear; the right side of the second driving wheel is in transmission connection with a third driving wheel; the right side of the second driving wheel is in transmission connection with a third electric push rod, and the left side of the third electric push rod is connected with a third driving wheel; the left top of the first bevel gear is meshed with the second bevel gear; the top end of the second bevel gear is in transmission connection with the first electric push rod; the top end of the first electric push rod is in transmission connection with the third bevel gear; the top of the rear end of the third bevel gear is meshed with the fourth bevel gear; the rear end axis of the fourth bevel gear is in transmission connection with the flywheel; the axle center of the rear end of the fourth bevel gear is in transmission connection with the first flat gear, and the axle center of the front end of the first flat gear is connected with the flywheel; the top end of the first flat gear is meshed with the tank bearing sliding plate; the outer surface of the tank bearing sliding plate is in sliding connection with the sliding chute; the top of the outer surface of the third driving wheel is in transmission connection with the fourth driving wheel through a transmission belt; the right side of the fourth transmission wheel is mutually inserted with the screw rod; the left side of the outer surface of the screw rod is in transmission connection with the transfer block; the bottom of the front end of the transfer block is connected with a second electric push rod; the top end of the second electric push rod is welded with the bottom plate of the raw material container; the right side of the third electric push rod is in transmission connection with a fifth bevel gear; the right side of the rear end of the fifth bevel gear is meshed with the sixth bevel gear; the front end shaft center of the sixth bevel gear is in transmission connection with the gradual material homogenizing device through a transmission belt; the front end of the gradual material homogenizing device is in transmission connection with a second flat gear; the right side of the bottom end of the sliding chute is connected with the bottom frame; the left side of the bottom end of the sliding chute is connected with the resistance furnace.

Further, the furnace door control device comprises a fourth electric push rod, a seventh bevel gear, an eighth bevel gear, a third bevel gear and a furnace door with teeth; the right side of the fourth electric push rod is in transmission connection with a seventh bevel gear; an eighth bevel gear is arranged on the right of the seventh bevel gear; the rear end axle center of the eighth bevel gear is in transmission connection with the third flat gear; the right side of the third flat gear is connected with a furnace door with teeth; the left side of the fourth electric push rod is connected with an automatic feeding and homogenizing device; the left side of the furnace door with teeth is connected with the resistance furnace.

Further, the thermal insulation layer clearing device comprises a ninth bevel gear, a tenth bevel gear, an eleventh bevel gear, a twelfth bevel gear, a first transmission rod, a second transmission rod, a third transmission rod, a toothed bar, a control rotating wheel and a telescopic scraper; the right top of the ninth bevel gear is meshed with the tenth bevel gear; the top end of the tenth bevel gear is in transmission connection with the eleventh bevel gear; the rear top of the eleventh bevel gear is meshed with the twelfth bevel gear; the front end axis of the twelfth bevel gear is in transmission connection with the first transmission rod; the front left side of the first transmission rod is in transmission connection with the second transmission rod; the left lower side of the rear end of the second transmission rod is in transmission connection with the third transmission rod; the left side of the rear end of the third transmission rod is in transmission connection with the toothed rod, and the front bottom of the toothed rod is connected with the second transmission rod; the left bottom of the rack bar is meshed with the control rotating wheel; the front end of the control rotating wheel is connected with the telescopic scraper through a bolt; the shaft center of the ninth bevel gear is connected with a pollution purification device.

Further, the pollution purification device comprises a gas transmission cabin, a gas recovery cabin, a downward one-way door, a right one-way door, a piston, a power turntable, a thirteenth bevel gear, a fourteenth bevel gear, a fifteenth bevel gear, a sixteenth bevel gear, a micro oxygen generator, a spark plug, a packing auger, a lime water inlet and a discharge plate; the right side of the gas transmission cabin is connected with the gas cabin; the middle part of the top of the gas transmission cabin is rotationally connected with a downward one-way door; the right side of the middle part in the gas transmission cabin is rotationally connected with the right one-way door; a piston is arranged on the left side of the middle part in the gas transmission cabin; the right side of the gas cabin is connected with the gas recovery cabin; a micro oxygen generator is arranged on the left side of the bottom in the gas cabin; a spark plug is arranged on the right side of the bottom in the gas cabin; the left side of the bottom in the gas recovery cabin is provided with a packing auger; the right side of the top end of the gas recovery cabin is connected with a lime water inlet; the right side of the bottom end of the gas recovery cabin is rotationally connected with the discharging plate; the left side of the piston is in transmission connection with the power turntable; the middle part of the front end of the power turntable is in transmission connection with a thirteenth bevel gear; the front bottom of the thirteenth bevel gear is meshed with the fourteenth bevel gear; the bottom end of the fourteenth bevel gear is in transmission connection with the fifteenth bevel gear; the right top of the fifteenth bevel gear is meshed with the sixteenth bevel gear, and the right side of the sixteenth bevel gear is connected with the auger; the top end of the gas transmission cabin is connected with the resistance furnace; the gas cabin resistance furnace is connected; the gas recovery cabin is connected with the resistance furnace; the right side of the packing auger is connected with an automatic feeding and homogenizing device.

Further, the synthesis tank comprises an outer wall, an inner wall and a graphite rod; an inner wall is arranged inside the outer wall; the middle part in the outer wall is provided with a graphite rod, and the graphite rod is positioned in the middle part in the inner wall.

Furthermore, the gradual material homogenizing device comprises a cam, a special-shaped swing rod, a hook rod, a claw-shaped push rod and a ratchet wheel; a special-shaped swing rod is arranged on the right side of the cam; the right side of the front bottom of the special-shaped swing rod is in transmission connection with the hook rod; the left side of the front bottom end of the special-shaped swing rod is in transmission connection with the claw-shaped push rod; the left bottom of the hook rod is connected with the ratchet wheel, and the left upper side of the outer surface of the ratchet wheel is connected with the claw-shaped push rod.

Further, the material container bottom plate is triangular in shape.

Furthermore, the outer wall and the inner wall are provided with small holes with meshes.

Furthermore, a drying block is arranged in the top end channel of the gas recovery cabin.

Compared with the prior art, the invention has the following beneficial effects:

aiming at solving the problems that the existing resistance furnace needs to be manually filled with synthetic raw materials when synthesizing silicon carbide, the time consumption is long, and occupational diseases such as pneumoconiosis and the like can be caused by the contact of the production time of workers and silicon dioxide; the raw materials cannot be fully utilized, and the yield is low; the toxic gas carbon monoxide generated in the synthesis process cannot be removed, so that the environment pollution is caused, and the health of workers is influenced; the mixed raw materials are splashed into a hearth from a container, a heat insulation layer is formed on the inner wall of the hearth under the action of high temperature, the inner wall of the hearth is heated unevenly, and the problem of damage of a resistance furnace is finally caused in the past.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of an automatic feeding and homogenizing device according to the present invention;

FIG. 3 is a schematic view of the mechanism of the oven door control device of the present invention;

FIG. 4 is a schematic structural view of a thermal insulation layer removing device according to the present invention;

FIG. 5 is a schematic view of the structure of the pollution purifying apparatus according to the present invention;

FIG. 6 is a schematic diagram of a top view of a synthesis tank according to the present invention;

fig. 7 is a schematic diagram of the gradual material homogenizing device according to the present invention.

Fig. 8 is an enlarged view of region a.

The labels in the figures are: 1-underframe, 2-automatic feeding and homogenizing device, 3-resistance furnace, 4-control screen, 5-furnace door control device, 6-thermal insulation layer removing device, 7-pollution purifying device, 8-ash-proof cover, 9-synthesis tank, 201-motor, 202-first driving wheel, 203-second driving wheel, 204-first bevel gear, 205-second bevel gear, 206-first electric push rod, 207-third bevel gear, 208-fourth bevel gear, 209-flywheel, 2010-first flat gear, 2011-chute, 2012-tank bearing slide plate, 2013-third driving wheel, 2014-fourth driving wheel, 2015-screw rod, 2016-transfer block, 2017-second electric push rod, 2018-raw material container bottom plate, 2019-third electric push rod, 2020-fifth bevel gear, 2021-sixth bevel gear, 2022-gradual material homogenizing device, 2023-second bevel gear, 501-fourth electric push rod, 502-seventh bevel gear, 503-eighth bevel gear, 504-third bevel gear, 505-toothed oven door, 601-ninth bevel gear, 602-tenth bevel gear, 603-eleventh bevel gear, 604-twelfth bevel gear, 605-first transmission rod, 606-second transmission rod, 607-third transmission rod, 608-toothed rod, 609-control rotating wheel, 6010-telescopic scraper, 701-gas transmission cabin, 702-gas cabin, 703-gas recovery cabin, 704-down one-way door, 705-right one-way door, 706-piston, 707-power turntable, 708-thirteenth bevel gear, 709-a fourteenth bevel gear, 7010-a fifteenth bevel gear, 7011-a sixteenth bevel gear, 7012-a micro oxygen generator, 7013-a spark plug, 7014-a packing auger, 7015-a lime water inlet, 7016-a discharging plate, 901-an outer wall, 902-an inner wall, 903-a graphite rod, 202101-a cam, 202102-a special-shaped swing rod, 202103-a hook rod, 202104-a claw push rod and 202105-a ratchet wheel.

Detailed Description

The invention is further described below with reference to the figures and examples.

Examples

A purification recovery type silicon carbide synthesis resistance furnace is shown in figures 1-8 and comprises a chassis 1, an automatic feeding and homogenizing device 2, a resistance furnace 3, a control screen 4, a furnace door control device 5, a heat-insulating layer removing device 6, a pollution purification device 7, an ash-proof cover 8 and a synthesis tank 9; an automatic feeding and homogenizing device 2 is arranged on the right side of the top end of the underframe 1; the left side of the top end of the underframe 1 is connected with a resistance furnace 3, and the right side of the bottom in the resistance furnace 3 is connected with an automatic feeding and homogenizing device 2; the left side of the top end of the automatic feeding and homogenizing device 2 is connected with a synthesis tank 9; the left side of the top end of the resistance furnace 3 is connected with a control screen 4; the right side of the top end of the resistance furnace 3 is connected with a furnace door control device 5; the left side of the top in the resistance furnace 3 is welded with a thermal insulation layer removing device 6; the bottom of the resistance furnace 3 is provided with a pollution purification device 7; the left side of the bottom in the resistance furnace 3 is connected with an ash-proof cover 8 through bolts.

The automatic feeding and homogenizing device 2 comprises a motor 201, a first driving wheel 202, a second driving wheel 203, a first bevel gear 204, a second bevel gear 205, a first electric push rod 206, a third bevel gear 207, a fourth bevel gear 208, a flywheel 209, a first flat gear 2010, a chute 2011, a tank bearing sliding plate 2012, a third driving wheel 2013, a fourth driving wheel 2014, a screw rod 2015, a transfer block 2016, a second electric push rod 2017, a raw material container bottom plate 2018, a third electric push rod 2019, a fifth bevel gear 2020, a sixth bevel gear 2021 and a gradual-motion homogenizing device 2022; the right side of the motor 201 is in transmission connection with a first transmission wheel 202; the bottom of the outer surface of the first driving wheel 202 is in driving connection with a second driving wheel 203 through a driving belt; the left side of the second transmission wheel 203 is in transmission connection with a first bevel gear 204; the right side of the second driving wheel 203 is in driving connection with a third driving wheel 2013; the right side of the second driving wheel 203 is in driving connection with a third electric push rod 2019, and the left side of the third electric push rod 2019 is connected with a third driving wheel 2013; the left top of the first bevel gear 204 is meshed with the second bevel gear 205; the top end of the second bevel gear 205 is in transmission connection with a first electric push rod 206; the top end of the first electric push rod 206 is in transmission connection with a third bevel gear 207; the top of the rear end of the third bevel gear 207 is meshed with the fourth bevel gear 208; the rear end axis of the fourth bevel gear 208 is in transmission connection with a flywheel 209; the rear end axis of the fourth bevel gear 208 is in transmission connection with the first flat gear 2010, and the front end axis of the first flat gear 2010 is connected with the flywheel 209; the top end of the first flat gear 2010 is meshed with the can bearing sliding plate 2012; the outer surface of the can bearing sliding plate 2012 is in sliding connection with the chute 2011; the top of the outer surface of the third driving wheel 2013 is in driving connection with a fourth driving wheel 2014 through a driving belt; the right side of the fourth driving wheel 2014 is mutually inserted with the screw 2015; the left side of the outer surface of the lead screw 2015 is in transmission connection with the transfer block 2016; the bottom of the front end of the transfer block 2016 is connected with a second electric push rod 2017; the top end of the second electric push rod 2017 is welded with the raw material container bottom plate 2018; the right side of the third electric push rod 2019 is in transmission connection with a fifth bevel gear 2020; the right side of the rear end of the fifth bevel gear 2020 is meshed with a sixth bevel gear 2021; the front end axle center of the sixth bevel gear 2021 is in transmission connection with the gradual material homogenizing device 2022 through a transmission belt; the front end of the gradual material homogenizing device 2022 is in transmission connection with a second flat gear 2023; the right side of the bottom end of the chute 2011 is connected with the underframe 1; the left side of the bottom end of the chute 2011 is connected with the resistance furnace 3.

The oven door control device 5 comprises a fourth electric push rod 501, a seventh bevel gear 502, an eighth bevel gear 503, a third bevel gear 504 and an oven door 505 with teeth; the right side of the fourth electric push rod 501 is in transmission connection with a seventh bevel gear 502; an eighth bevel gear 503 is arranged on the right of the seventh bevel gear 502; the rear end axis of the eighth bevel gear 503 is in transmission connection with the third flat gear 504; the right side of the third flat gear 504 is connected with a toothed furnace door 505; the left side of the fourth electric push rod 501 is connected with the automatic feeding and homogenizing device 2; the left side of the toothed furnace door 505 is connected with the resistance furnace 3.

The thermal insulation layer removing device 6 comprises a ninth bevel gear 601, a tenth bevel gear 602, an eleventh bevel gear 603, a twelfth bevel gear 604, a first transmission rod 605, a second transmission rod 606, a third transmission rod 607, a toothed rod 608, a control rotating wheel 609 and a telescopic scraper 6010; the top right of the ninth bevel gear 601 is meshed with the tenth bevel gear 602; the top end of the tenth bevel gear 602 is in transmission connection with an eleventh bevel gear 603; the rear top of the eleventh bevel gear 603 is meshed with the twelfth bevel gear 604; the front end axis of the twelfth bevel gear 604 is in transmission connection with a first transmission rod 605; the front left side of the first transmission rod 605 is in transmission connection with the second transmission rod 606; the left lower side of the rear end of the second transmission rod 606 is in transmission connection with a third transmission rod 607; the left side of the rear end of the third transmission rod 607 is in transmission connection with the gear rod 608, and the front bottom of the gear rod 608 is connected with the second transmission rod 606; the left bottom of the rack bar 608 is meshed with the control rotating wheel 609; the front end of the control rotating wheel 609 is in bolted connection with the telescopic scraper 6010; the ninth bevel gear 601 is connected to the pollution cleaning apparatus 7 at its axial center.

Wherein, the pollution purifying device 7 comprises a gas transmission cabin 701, a gas cabin 702, a gas recovery cabin 703, a downward one-way door 704, a right one-way door 705, a piston 706, a power turntable 707, a thirteenth bevel gear 708, a fourteenth bevel gear 709, a fifteenth bevel gear 7010, a sixteenth bevel gear 7011, a micro oxygen generator 7012, a spark plug 7013, an auger 7014, a lime water inlet 7015 and a discharging plate 7016; the right side of the gas transmission cabin 701 is connected with a gas cabin 702; the middle of the top of the gas transmission cabin 701 is rotatably connected with a downward one-way door 704; the right side of the middle part in the gas transmission cabin 701 is rotatably connected with a right one-way door 705; a piston 706 is arranged on the left side of the middle part in the gas transmission cabin 701; the right side of the gas cabin 702 is connected with a gas recovery cabin 703; a micro oxygen generator 7012 is arranged on the left side of the bottom in the gas cabin 702; a spark plug 7013 is arranged on the right side of the bottom in the gas cabin 702; the left side of the bottom in the gas recovery cabin 703 is provided with a packing auger 7014; the right side of the top end of the gas recovery cabin 703 is connected with a lime water inlet 7015; the right side of the bottom end of the gas recovery cabin 703 is rotatably connected with a discharge plate 7016; the left side of the piston 706 is in transmission connection with a power turntable 707; the middle part of the front end of the power turntable 707 is in transmission connection with a thirteenth bevel gear 708; the front bottom of the thirteenth bevel gear 708 is meshed with a fourteenth bevel gear 709; the bottom end of the fourteenth bevel gear 709 is in transmission connection with a fifteenth bevel gear 7010; the right top of a fifteenth bevel gear 7010 is meshed with a sixteenth bevel gear 7011, and the right side of the sixteenth bevel gear 7011 is connected with an auger 7014; the top end of the gas transmission cabin 701 is connected with the resistance furnace 3; the gas cabin 702 is connected with the resistance furnace 3; the gas recovery cabin 703 is connected with the resistance furnace 3; the right side of the packing auger 7014 is connected with the automatic feeding and homogenizing device 2.

Wherein, the synthesis tank 9 comprises an outer wall 901, an inner wall 902 and a graphite rod 903; an inner wall 902 is arranged inside the outer wall 901; the graphite rod 903 is arranged in the middle of the inner wall 901, and the graphite rod 903 is positioned in the middle of the inner wall 902.

Wherein, the gradual material homogenizing device 2022 comprises a cam 202101, a special-shaped swing rod 202102, a hook rod 202103, a claw-shaped push rod 202104 and a ratchet wheel 202105; a special-shaped swing rod 202102 is arranged on the right of the cam 202101; the right side of the front bottom of the special-shaped swing rod 202102 is in transmission connection with the hook rod 202103; the left side of the front bottom end of the special-shaped swing rod 202102 is in transmission connection with a claw-shaped push rod 202104; the hook lever 202103 is connected to the ratchet wheel 202105 at the bottom left and the ratchet wheel 202105 is connected to the pawl push rod 202104 at the top left of the outer surface.

Wherein the raw material container bottom 2018 is triangular in shape.

Wherein, the outer wall 901 and the inner wall 902 are provided with small holes with meshes.

Wherein, a drying block is arranged in the channel at the top end of the gas recovery cabin 703.

The working principle is as follows: when the device is used, the environment-friendly silicon carbide synthesis resistance furnace 3 is installed at a place needing to be used, a power supply is connected externally, clarified lime water is supplemented to the pollution purification device 7, then the device is started, the furnace door control device 5 is controlled to open the furnace door through the control screen 4, then the automatic feeding and homogenizing device 2 is controlled to feed the synthesis tank 9 out of the resistance furnace 3 for raw material filling, the automatic feeding and homogenizing device 2 is controlled to feed the synthesis tank 9 back after the raw materials are filled, the furnace door is closed for silicon carbide production, meanwhile, the pollution purification device 7 is started to purify produced pollution gas, the synthesis tank 9 is sent out after the production is completed, the thermal insulation layer removing device 6 is started to scrape the thermal insulation layer solidified on the inner wall 902 on the left side of the hearth, and then the next production is prepared. Whole device is simple and convenient to use, has realized the full automatization of carborundum production, can also obtain the accessory substance calcium carbonate in addition when purifying polluted gas carbon monoxide, creates economic benefits when the environmental protection to still there is cleaning device to clear up maintenance to resistance furnace 3, prolongs resistance furnace 3's life, is worth using widely.

The automatic feeding and homogenizing device 2 comprises a motor 201, a first driving wheel 202, a second driving wheel 203, a first bevel gear 204, a second bevel gear 205, a first electric push rod 206, a third bevel gear 207, a fourth bevel gear 208, a flywheel 209, a first flat gear 2010, a chute 2011, a tank bearing sliding plate 2012, a third driving wheel 2013, a fourth driving wheel 2014, a screw rod 2015, a transfer block 2016, a second electric push rod 2017, a raw material container bottom plate 2018, a third electric push rod 2019, a fifth bevel gear 2020, a sixth bevel gear 2021, a gradual-motion homogenizing device 2022 and a second flat gear 2023; the right side of the motor 201 is in transmission connection with a first transmission wheel 202; the bottom of the outer surface of the first driving wheel 202 is in driving connection with a second driving wheel 203 through a driving belt; the left side of the second transmission wheel 203 is in transmission connection with a first bevel gear 204; the right side of the second driving wheel 203 is in driving connection with a third driving wheel 2013; the right side of the second driving wheel 203 is in driving connection with a third electric push rod 2019, and the left side of the third electric push rod 2019 is connected with a third driving wheel 2013; the left top of the first bevel gear 204 is meshed with the second bevel gear 205; the top end of the second bevel gear 205 is in transmission connection with a first electric push rod 206; the top end of the first electric push rod 206 is in transmission connection with a third bevel gear 207; the top of the rear end of the third bevel gear 207 is meshed with the fourth bevel gear 208; the rear end axis of the fourth bevel gear 208 is in transmission connection with a flywheel 209; the rear end axis of the fourth bevel gear 208 is in transmission connection with the first flat gear 2010, and the front end axis of the first flat gear 2010 is connected with the flywheel 209; the top end of the first flat gear 2010 is meshed with the can bearing sliding plate 2012; the outer surface of the can bearing sliding plate 2012 is in sliding connection with the chute 2011; the top of the outer surface of the third driving wheel 2013 is in driving connection with a fourth driving wheel 2014 through a driving belt; the right side of the fourth driving wheel 2014 is mutually inserted with the screw 2015; the left side of the outer surface of the lead screw 2015 is in transmission connection with the transfer block 2016; the bottom of the front end of the transfer block 2016 is connected with a second electric push rod 2017; the top end of the second electric push rod 2017 is welded with the raw material container bottom plate 2018; the right side of the third electric push rod 2019 is in transmission connection with a fifth bevel gear 2020; the right side of the rear end of the fifth bevel gear 2020 is meshed with a sixth bevel gear 2021; the front end axle center of the sixth bevel gear 2021 is in transmission connection with the gradual material homogenizing device 2022 through a transmission belt; the front end of the gradual material homogenizing device 2022 is in transmission connection with a second flat gear 2023; the right side of the bottom end of the chute 2011 is connected with the underframe 1; the left side of the bottom end of the chute 2011 is connected with the resistance furnace 3.

When the materials are loaded, the oven door is opened, the first driving wheel 202 is driven by the motor 201, the second driving wheel 203 is driven, the first bevel gear 204 is driven by the second driving wheel 203, the second bevel gear 205 meshed with the first bevel gear is driven, the first electric push rod 206 is driven after the second bevel gear 205 rotates, the third bevel gear 207 is driven, the third bevel gear 207 is meshed with the fourth bevel gear 208, the flywheel 209 and the first flat gear 2010 are driven, then the first flat gear 2010 pushes the tank bearing sliding plate 2012 to slide out of the hearth rightwards in the sliding groove 2011, and when the right side of the bottom end of the tank bearing sliding plate 2012 is meshed with the second flat gear 2023, the left side of the bottom of the tank bearing sliding plate is just separated from the first flat gear 2010. Then, the second driving wheel 203 drives the third driving wheel 2013 and the fifth bevel gear 2020, on one hand, the third driving wheel 2013 drives the fourth driving wheel 2014 to drive the screw 2015, the transfer block 2016 is driven by the screw 2015 to drive the container with the mixed raw materials mounted on the transfer block 2016 to move, on the other hand, after the can holding sliding plate 2012 is meshed with the second flat gear 2023, the third electric push rod 2019 extends rightwards, the fifth bevel gear 2020 and the sixth bevel gear 2021 are meshed with each other, the fifth bevel gear 2020 drives the sixth bevel gear 2021, the sixth bevel gear 2021 drives the gradual material homogenizing device 2022 to adjust the can holding sliding plate 2012 to a proper position, then the third electric push rod 2019 contracts, the gradual material homogenizing device 2022 stops running, the position of the can holding sliding plate 2012 is fixed, and then when the raw material container moves to the upper part of the synthesis can 9 mounted on the can holding sliding plate, the motor 201 is stopped, then, the second electric push rod 2017 is controlled to drive the raw material container bottom plate 2018 to move downwards to open the container, raw material filling is carried out, the raw materials are automatically made to fall into the synthesis tank 9 because the raw materials are filled into the synthesis tank 9 and inevitably form pyramid-shaped accumulation with high middle and low periphery in the synthesis tank 9, the phenomenon that the middle raw materials of the synthesis tank 9 are too much and the periphery is not full can be caused, space is wasted, and the subsequent synthesis effect is influenced, at the moment, the motor 201 and the gradual-moving material homogenizing device 2022 are started reversely, the gradual-moving material homogenizing device 2022 vibrates when transmission and stopping are alternated, the vibration is generated, the too much raw materials are vibrated to be dispersed and filled around through vibration, the utilization rate and the synthesis effect of the space are ensured, the motor 201 rotates reversely to send the tank bearing sliding plate 2012 back to the hearth, the furnace door is closed, and preparation before synthesis work is. The device has realized the automatic loading of synthetic raw materials, replaces traditional manual work to load, when promoting the efficiency of loading, avoids the workman to contact the raise dust that loads the raw materials and produce, reduces the probability that dirt lung occupational disease takes place, has played the effect of protection to the workman to can also link with furnace gate controlling means 5, insulating layer clearing device 6 and pollution purification device 7.

When the door is opened and closed, the rotating fourth electric push rod 501 drives the seventh bevel gear 502 to rotate, then the fourth electric push rod 501 is controlled to extend leftwards, the seventh bevel gear 502 is meshed with the eighth bevel gear 503 to drive the eighth bevel gear 503, then the eighth bevel gear 503 drives the third bevel gear 504, finally the third bevel gear 504 drives the toothed door 505 meshed with the third bevel gear to control the opening and closing of the door.

When the heat insulation layer needs to be removed, the ninth bevel gear 601 is driven to rotate, the ninth bevel gear 601 is used for rotating the tenth bevel gear 602 engaged with the ninth bevel gear 601, then the tenth bevel gear 602 drives the eleventh bevel gear 603 and drives the twelfth bevel gear 604 engaged with the eleventh bevel gear 603, then the twelfth bevel gear 604 drives the first transmission rod 605, then the first transmission rod 605 rotates and pushes and pulls the second transmission rod 606, the second transmission rod 606 drives the third transmission rod 607, thereby driving the toothed rod 608 to reciprocate up and down, the toothed rod 608 reciprocates to drive the control rotating wheel 609 engaged with the toothed rod 608, finally the telescopic scraper 6010 swings up and down to remove solids attached to the inner wall 902 of the hearth, and the attachments on the inner wall 902 of the hearth are mixed raw materials leaked from the container in the production process, are heated at high temperature in the hearth to start reaction, and simultaneously float to the vicinity of the inner wall 902 of the hearth under the action of circulating air flow, the reaction is accomplished when finally touching inner wall 902, form the solid adhesive layer that has thermal-insulated heat preservation function, the insulating layer has good thermal-insulated heat preservation function, the temperature difference when producing that leads to this inner wall 902 and other inner walls 902, long-time nonconformity finally can lead to furnace to take place the fracture, form the potential safety hazard, even cause the production accident, set up the device and clear away the insulating layer, eliminate the potential safety hazard, prolong resistance furnace 3's life simultaneously, kill two birds with one stone, can also form the linkage with automatic feeding mixing device 2 and pollution purification device 7.

When carbon monoxide is removed, an auger 7014 is driven by external power, then an auger 7014 drives a sixteenth bevel gear 7011, the sixteenth bevel gear 7011 drives a fifteenth bevel gear 7010 engaged with the sixteenth bevel gear 7011, then a fifteenth bevel gear 7010 drives a fourteenth bevel gear 709 to drive a thirteenth bevel gear 708 engaged with the sixteenth bevel gear 708, then a power turntable 707 is driven, a piston 706 is driven, when the piston 706 moves leftwards, a downward one-way door 704 is opened to pump carbon monoxide in a hearth into a gas delivery cabin 701, then the piston 706 moves rightwards and a right one-way door 705 is opened, the carbon monoxide is discharged into a gas cabin 702, meanwhile, a micro oxygen generator 7012 mixes oxygen into the piston and a spark plug 7013 is ignited to burn the carbon monoxide into nontoxic carbon dioxide to finish the purification work of toxic gas, and then the carbon dioxide enters a gas recovery cabin 703 to be absorbed by clear lime water in the gas recovery cabin 703 to form calcium carbonate precipitate, the gas which can not react returns to the hearth from the outlet at the top end of the gas recovery cabin 703, the precipitated calcium carbonate falls into the groove at the right bottom of the gas recovery cabin 703 under the conveying of the packing auger 7014 and is accumulated at the groove, and when the accumulation reaches a certain amount, the material discharging plate 7016 is opened to recover the calcium carbonate. The device has solved the unable problem of purifying the gaseous carbon monoxide of pollution of traditional device to obtain by-product calcium carbonate simultaneously, not only environmental protection but also create economic benefits, and can also form the linkage with automatic material mixing device 2 and insulating layer clearing device 6 of throwing.

In the traditional silicon carbide synthesis container, only the outermost outer wall 901 is arranged, then the central graphite rod 903 is coated by raw materials, then the graphite rod 903 is electrified to raise the temperature for synthesis reaction, the raw material around the graphite rod 903 is first synthesized into silicon carbide and then gradually diffused outward, but silicon carbide is a refractory and heat-insulating material, and the heat conduction effect between solids is inherently poor, so that the temperature of the raw material close to the outer layer can not meet the synthesis requirement, an inner wall 902 is arranged at the outer ring of the graphite rod 903, the raw material between the inner wall 902 and the graphite rod 903 can be used for stably synthesizing silicon carbide, then the inner wall 902 of the metal support continuously absorbs heat to become a second graphite rod 903 which transmits the temperature to the outside raw material, the synthesis temperature of raising the outside temperature improves the utilization rate of single raw materials and improves the production efficiency.

When the can carrying sliding plate 2012 returns to the hearth, the cam 202101 rotates to collide with the special-shaped swing rod 202102, the cam 202101 pushes the special-shaped swing rod 202102 rightwards, the special-shaped swing rod 202102 turns rightwards, the hook rod 202103 is pulled upwards, the claw-shaped push rod 202104 is pushed leftwards, the hook rod 202103 and the claw-shaped push rod 202104 are matched to rotate the ratchet wheel 202105 for one grid and simultaneously drive the second flat gear 2023, then the special-shaped swing rod 202102 resets, and then the operation is repeated, when the whole device operates, the intermittent transmission of the cam 202101 can enable the can carrying sliding plate 2012 to vibrate in the transmission and stopping processes, raw materials which are unevenly distributed in the vibration are evenly dispersed, and the utilization rate of space is improved.

The raw material container bottom plate 2018 is triangular, the raw material container bottom plate 2018 is arranged to be triangular, when the raw material container bottom plate 2018 descends to form a small opening, the falling distance of solid raw materials is farther away from the raw material container bottom plate 2018, raw material filling can be conducted on the outer layer of the synthesis tank 9, when the raw material container bottom plate 2018 descends to form a large opening, the falling distance of the solid raw materials is closer to the raw material container bottom plate 2018, raw material filling can be conducted on the inner layer, the filling position of the raw materials can be controlled through one plate, the space and the cost for installing a second container are saved, and the production cost is reduced.

Wherein, the outer wall 901 and the inner wall 902 are provided with small holes with meshes, which is beneficial to the overflow of carbon monoxide gas and can prevent the leakage of raw materials.

Wherein, a drying block is arranged in the channel at the top end of the gas recovery cabin 703 to absorb the moisture brought out from the solution, thereby preventing the moisture from influencing the production process in the hearth.

Although the present disclosure has been described in detail with reference to the exemplary embodiments, the present disclosure is not limited thereto, and it will be apparent to those skilled in the art that various modifications and changes can be made thereto without departing from the scope of the present disclosure.

Claims

1. A purification recovery type silicon carbide synthesis resistance furnace comprises an underframe (1), an automatic feeding and homogenizing device (2), a resistance furnace (3) and a control screen (4), and is characterized by also comprising a furnace door control device (5), a thermal insulation layer clearing device (6), a pollution purification device (7), an ash-proof cover (8) and a synthesis tank (9); an automatic feeding and homogenizing device (2) is arranged on the right side of the top end of the underframe (1); the left side of the top end of the underframe (1) is connected with the resistance furnace (3), and the right side of the bottom in the resistance furnace (3) is connected with the automatic feeding and homogenizing device (2); the left side of the top end of the automatic feeding and homogenizing device (2) is connected with a synthesis tank (9); the left side of the top end of the resistance furnace (3) is connected with the control screen (4); the right side of the top end of the resistance furnace (3) is connected with a furnace door control device (5); the left side of the inner top of the resistance furnace (3) is welded with a heat insulation layer removing device (6); a pollution purification device (7) is arranged at the bottom of the resistance furnace (3); the left side of the bottom in the resistance furnace (3) is connected with an ash-proof cover (8) by bolts.

2. The purification and recovery type silicon carbide synthesis resistance furnace according to claim 1, wherein the automatic feeding and homogenizing device (2) comprises a motor (201), a first driving wheel (202), a second driving wheel (203), a first bevel gear (204), a second bevel gear (205), a first electric push rod (206), a third bevel gear (207), a fourth bevel gear (208), a flywheel (209), a first flat gear (2010), a chute (2011), a tank holding sliding plate (2012), a third driving wheel (2013), a fourth driving wheel (2014), a screw rod (2015), a transfer block (2016), a second electric push rod (2017), a raw material container bottom plate (2018), a third electric push rod (2019), a fifth bevel gear (2020), a sixth bevel gear (2021) and a gradual-moving homogenizing device (2022); the right side of the motor (201) is in transmission connection with a first transmission wheel (202); the bottom of the outer surface of the first transmission wheel (202) is in transmission connection with a second transmission wheel (203) through a transmission belt; the left side of the second transmission wheel (203) is in transmission connection with a first bevel gear (204); the right side of the second driving wheel (203) is in transmission connection with a third driving wheel (2013); the right side of the second driving wheel (203) is in transmission connection with a third electric push rod (2019), and the left side of the third electric push rod (2019) is connected with a third driving wheel (2013); the left top of the first bevel gear (204) is meshed with the second bevel gear (205); the top end of the second bevel gear (205) is in transmission connection with a first electric push rod (206); the top end of the first electric push rod (206) is in transmission connection with a third bevel gear (207); the top of the rear end of the third bevel gear (207) is meshed with the fourth bevel gear (208); the rear end axis of the fourth bevel gear (208) is in transmission connection with a flywheel (209); the rear end axle center of the fourth bevel gear (208) is in transmission connection with the first flat gear (2010), and the front end axle center of the first flat gear (2010) is connected with the flywheel (209); the top end of the first flat gear (2010) is meshed with the tank bearing sliding plate (2012); the outer surface of the tank bearing sliding plate (2012) is in sliding connection with the sliding groove (2011); the top of the outer surface of the third driving wheel (2013) is in transmission connection with a fourth driving wheel (2014) through a transmission belt; the right side of the fourth driving wheel (2014) is mutually inserted with the screw rod (2015); the left side of the outer surface of the screw rod (2015) is in transmission connection with the transfer block (2016); the bottom of the front end of the transfer block (2016) is connected with a second electric push rod (2017); the top end of the second electric push rod (2017) is welded with the bottom plate (2018) of the raw material container; the right side of the third electric push rod (2019) is in transmission connection with a fifth bevel gear (2020); the right side of the rear end of the fifth bevel gear (2020) is meshed with the sixth bevel gear (2021); the front end shaft center of the sixth bevel gear (2021) is in transmission connection with the gradual-motion material-homogenizing device (2022) through a transmission belt; the front end of the gradual material homogenizing device (2022) is in transmission connection with a second flat gear (2023); the right side of the bottom end of the sliding chute (2011) is connected with the bottom frame (1); the left side of the bottom end of the sliding groove (2011) is connected with the resistance furnace (3).

3. The purification and recovery type silicon carbide synthesis resistance furnace according to claim 2, wherein the furnace door control device (5) comprises a fourth electric push rod (501), a seventh bevel gear (502), an eighth bevel gear (503), a third bevel gear (504) and a toothed furnace door (505); the right side of the fourth electric push rod (501) is in transmission connection with a seventh bevel gear (502); an eighth bevel gear (503) is arranged on the right of the seventh bevel gear (502); the rear end axle center of the eighth bevel gear (503) is in transmission connection with the third bevel gear (504); the right side of the third flat gear (504) is connected with a toothed furnace door (505); the left side of a fourth electric push rod (501) is connected with an automatic feeding and homogenizing device (2); the left side of the furnace door (505) with teeth is connected with the resistance furnace (3).

4. The purification and recovery type silicon carbide synthesis resistance furnace according to claim 3, wherein the thermal insulation layer removing device (6) comprises a ninth bevel gear (601), a tenth bevel gear (602), an eleventh bevel gear (603), a twelfth bevel gear (604), a first transmission rod (605), a second transmission rod (606), a third transmission rod (607), a toothed rod (608), a control rotating wheel (609) and a telescopic scraper (6010); the right top of the ninth bevel gear (601) is meshed with the tenth bevel gear (602); the top end of the tenth bevel gear (602) is in transmission connection with the eleventh bevel gear (603); the rear top of the eleventh bevel gear (603) is meshed with the twelfth bevel gear (604); the front end axis of the twelfth bevel gear (604) is in transmission connection with the first transmission rod (605); the front left side of the first transmission rod (605) is in transmission connection with the second transmission rod (606); the left lower side of the rear end of the second transmission rod (606) is in transmission connection with a third transmission rod (607); the left side of the rear end of the third transmission rod (607) is in transmission connection with the gear rod (608), and the front bottom of the gear rod (608) is connected with the second transmission rod (606); the left bottom of the rack bar (608) is meshed with the control rotating wheel (609); the front end of the control rotating wheel (609) is connected with a telescopic scraper (6010) through a bolt; the axis of the ninth bevel gear (601) is connected with a pollution purification device (7).

5. The purification and recovery type silicon carbide synthesis resistance furnace according to claim 4, wherein the pollution purification device (7) comprises a gas transmission cabin (701), a gas cabin (702), a gas recovery cabin (703), a downward one-way door (704), a right one-way door (705), a piston (706), a power rotary disk (707), a thirteenth bevel gear (708), a fourteenth bevel gear (709), a fifteenth bevel gear (7010), a sixteenth bevel gear (7011), a micro oxygen generator (7012), a spark plug (7013), a packing auger (7014), a lime water inlet (7015) and a discharge plate (7016); the right side of the gas transmission cabin (701) is connected with the gas cabin (702); the middle of the top of the gas transmission cabin (701) is rotatably connected with a downward one-way door (704); the right side of the middle part in the gas transmission cabin (701) is rotatably connected with a right one-way door (705); a piston (706) is arranged on the left side of the middle part in the gas transmission cabin (701); the right side of the gas cabin (702) is connected with a gas recovery cabin (703); a micro oxygen generator (7012) is arranged on the left side of the bottom in the gas cabin (702); a spark plug (7013) is arranged on the right side of the bottom in the gas cabin (702); a packing auger (7014) is arranged at the left side of the bottom in the gas recovery cabin (703); the right side of the top end of the gas recovery cabin (703) is connected with a lime water inlet (7015); the right side of the bottom end of the gas recovery cabin (703) is rotationally connected with a material discharge plate (7016); the left side of the piston (706) is in transmission connection with a power turntable (707); the middle part of the front end of the power turntable (707) is in transmission connection with a thirteenth bevel gear (708); the front bottom of the thirteenth bevel gear (708) is meshed with the fourteenth bevel gear (709); the bottom end of the fourteenth bevel gear (709) is in transmission connection with a fifteenth bevel gear (7010); the right top of the fifteenth bevel gear (7010) is meshed with a sixteenth bevel gear (7011), and the right side of the sixteenth bevel gear (7011) is connected with an auger (7014); the top end of the gas transmission cabin (701) is connected with the resistance furnace (3); the gas cabin (702) is connected with the resistance furnace (3); the gas recovery cabin (703) is connected with the resistance furnace (3); the right side of the packing auger (7014) is connected with an automatic feeding and homogenizing device (2).

6. The purification and recovery type silicon carbide synthesis resistance furnace according to claim 5, wherein the synthesis tank (9) comprises an outer wall (901), an inner wall (902) and a graphite rod (903); an inner wall (902) is arranged inside the outer wall (901); the graphite rod (903) is arranged in the middle of the outer wall (901), and the graphite rod (903) is located in the middle of the inner wall (902).

7. The purification and recovery type silicon carbide synthesis resistance furnace as claimed in claim 6, wherein the gradual material homogenizing device (2022) comprises a cam (202101), a profiled swing rod (202102), a hook rod (202103), a claw-shaped push rod (202104) and a ratchet wheel (202105); a special-shaped swing rod (202102) is arranged on the right of the cam (202101); the right side of the front bottom of the special-shaped swing rod (202102) is in transmission connection with the hook rod (202103); the left side of the front bottom end of the special-shaped swing rod (202102) is in transmission connection with the claw-shaped push rod (202104); the left bottom of the hook lever (202103) is connected with a ratchet wheel (202105), and the left upper side of the outer surface of the ratchet wheel (202105) is connected with a claw-shaped push rod (202104).

8. The purification and recovery type silicon carbide synthesis resistance furnace as claimed in claim 7, wherein the raw material container bottom plate (2018) is triangular in shape.

9. The purification and recovery type silicon carbide synthesis resistance furnace as claimed in claim 8, wherein the outer wall (901) and the inner wall (902) are provided with mesh pores.

10. The purification and recovery type silicon carbide synthesis resistance furnace according to claim 9,

a drying block is arranged in a channel at the top end of the gas recovery cabin (703).